Effects of fendiline on cocaine-seeking behavior in the rat

Psychopharmacology
Jonathan J CunninghamKaren Brebner

Abstract

L-type Ca(2+) channels (LTCC) and GABAB receptors are both possible targets in the development of new pharmacological compounds for cocaine addiction. Drugs that target either receptor attenuate a wide range of cocaine-seeking behaviors in the rat. However, there is no current human-approved pharmacotherapeutic intervention for psychostimulant addiction. This study examined the effects of a human-approved LTCC blocker, fendiline, on cocaine-taking and cocaine-seeking behavior in rats. The effects of combining fendiline with the GABAB receptor agonist baclofen on cocaine self-administration were also tested. Male Wistar rats were trained to self-administer cocaine, and the effects of fendiline pretreatment (vehicle, 1.78, 3.16, 5.62 mg/kg, intraperitoneal (IP)) were tested on progressive ratio responding and cue- and drug-induced reinstatement. The effects of baclofen (vehicle, 0.56, 1.78, 3.16, 5.62 mg/kg, IP) combined with fendiline (5.62 mg/kg, IP) were tested on progressive ratio responding. Control experiments measured locomotor activity and lever pressing for food in rats that received both baclofen and fendiline prior to the test session. Acute injections of fendiline prior to cue- or drug-induced reinstatement significan...Continue Reading

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Citations

Aug 10, 2017·Addiction Biology·Seth R Batten, Joshua S Beckmann
May 19, 2018·Neuropsychopharmacology : Official Publication of the American College of Neuropsychopharmacology·Nii A AddyAnjali M Rajadhyaksha

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